This is US only, though I'm sure a lot of it will apply to other countries as well. If you are worried about your kids getting gender garbage drilled into them at school, I have some advice and general do's and don'ts. And some good news- you'd be surprised how easy it is to eject it with a bit of pushback.
Because a lot of educators don't like Gender Is Magic any more than you do. The trouble is, local governments aren't interested in what teachers or principals have to say. Parents outnumber them by far, and they're the ones whose votes mean something. Most politicians are slick enough to know that if one parent complains, there are more that think the same way, and might vote later.
So here's my quick and dirty advice.
- Make sure you absolutely know what is going on, and don't assume that your kid is an accurate reporter. Even your very honest, lovely kid can mis-report, and it's important that you don't make a fool of yourself. Call and politely ask. If you start off nasty AND you're wrong, staff will think you are mean + dumb. That only ever triggers contempt.
- If you want to record a conversation, or even a classroom, talk to a lawyer about that. You don't want to be on the losing end of a lawsuit. Better stick to emails or paper documents if you can.
- Collect data, such as worksheets, notices, state/district curriculum that pertains to gender ideology. Mark what was actually used. (A lot of curriculum gets written that never reaches students).
- If there are trans-identified students whose parents are salivating to sue, bear that in mind.
- You shouldn't be gunning to ruin someone's life or career. That's what TRAs and SJWs do. We should be making life better, not be yet another band of abusive shit bags.
- You need to not only contact the teacher, but the principal, the board of education, the superintendent, your state representatives, senators, and governor. It's no good just talking to the teacher, since most of it is out of his/her hands anyway.
- Be prepared to be unpopular with other people, even with a secret fanbase. A lot of parents will like what you're doing but won't help you, and most educators CANNOT publicly side with you.
- Try getting involved during the summer holidays to keep this stuff out beforehand. That's when schools are planning new curriculum.
- If you can, work with a legal expert to help you navigate it all. Obviously don't address particular students.
- Make your own goals clear- sex segregated spaces should remain so, personal interests should not be off-limits for being "boyish" or "girly." Sex is immutable, but gnc kids need to be accepted, not labeled/medicalized.